<template>
  <div class="report">
    <!-- 顶部面包屑 -->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/welcome' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>数据统计</el-breadcrumb-item>
      <el-breadcrumb-item>数据报表</el-breadcrumb-item>
    </el-breadcrumb>
    <!-- 卡片视图 -->
    <el-card>
      <!-- 为ECharts准备一个具备大小（宽高）的Dom -->
      <div id="main" style="width: 700px;height:400px;"></div>
    </el-card>
  </div>
</template>

<script>
import echarts from 'echarts'
import _ from 'lodash'

export default {
  data () {
    return {
      options: {
        title: {
          text: '用户来源'
        },
        tooltip: {
          trigger: 'axis',
          axisPointer: {
            type: 'cross',
            label: {
              backgroundColor: '#E9EEF3'
            }
          }
        },
        grid: {
          left: '3%',
          right: '4%',
          bottom: '3%',
          containLabel: true
        },
        xAxis: [
          {
            boundaryGap: false
          }
        ],
        yAxis: [
          {
            type: 'value'
          }
        ]
      }
    }
  },
  created () {
    // this.getReports()
  },
  mounted () {
    //* 基于准备好的dom，初始化echarts实例
    var myChart = echarts.init(document.getElementById('main'))
    // ^获取图标数据
    this.$http.getReports()
      .then(resp => {
        console.log(resp)
        // this.options = {
        //   ...this.options,
        //   ...resp.data.data
        // }
        //* 指定图表的配置项和数据
        const result = _.merge(resp.data.data, this.options)
        //* 使用刚指定的配置项和数据显示图表。
        myChart.setOption(result)
        // console.log(this.options)
      })
  },
  methods: {
    // getReports () {
    //   this.$http.getReports()
    // }
  }
}
</script>

<style lang="scss" scoped>
  .report {
    .el-card {
      margin-top: 15px;
    }
  }
</style>
